img not found img not found

Problems on Trains

  1. km/hr to m/s conversion:
    akm/hr = ax 5 m/s.
    18
  2. m/s to km/hr conversion:
  3. am/s = ax 18 km/hr.
    5
  4. Time taken by a train of lengthlmetres to pass a pole or standing man or a signal post is equal to the time taken by the train to coverlmetres.
  5. Time taken by a train of lengthlmetres to pass a stationery object of lengthbmetres is the time taken by the train to cover (l+b) metres.
  6. Suppose two trains or two objects bodies are moving in the same direction atum/s andvm/s, whereu>v, then their relative speed is = (u-v) m/s.
  7. Suppose two trains or two objects bodies are moving in opposite directions atum/s andvm/s, then their relative speed is = (u+v) m/s.
  8. If two trains of lengthametres andbmetres are moving in opposite directions atum/s andvm/s, then:
    The time taken by the trains to cross each other = (a+b) sec.
    (u+v)
  9. If two trains of lengthametres andbmetres are moving in the same direction atum/s andvm/s, then:
    The time taken by the faster train to cross the slower train = (a+b) sec.
    (u-v)
  10. If two trains (or bodies) start at the same time from points A and B towards each other and after crossing they takeaandbsec in reaching B and A respectively, then: (A's speed) : (B's speed) = (b:a)



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.